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http://dx.doi.org/10.3795/KSME-A.2010.34.1.103

Development of Assessment Methodology on Creep-Fatigue Crack Behavior for a Grade 91 Steel Structure  

Lee, Hyeong-Yeon (Korea Atomic Energy Research Institute)
Lee, Jae-Han (Korea Atomic Energy Research Institute)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.34, no.1, 2010 , pp. 103-110 More about this Journal
Abstract
In this study, an assessment method on creep-fatigue crack initiation and crack growth for a Mod.9Cr-1Mo steel (ASME Grade 91) structure has been developed with an extension of the French RCC-MR A16 procedure. The current A16 guide provides defect assessment procedure for a creep-fatigue crack initiation and crack growth for an austenitic stainless steel, but no guideline is available yet for a Mod.9Cr-1Mo steel which is now widely being adopted for structural materials of future nuclear reactor system as well as ultra super critical (USC) thermal plant. In the present study an assessment method on creep-fatigue crack initiation and crack growth is provided for the FMS (Ferritic-Martensitic Steel) and assessment on the creep-fatigue crack behavior for a structure has been carried out. The assessment results were compared with the observed images from a structural test.
Keywords
Creep-Fatigue; Crack Growth; Crack Initiation; Mod.9Cr-1Mo Steel; High Temperature Component;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 1
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